Strainer.



' PATENTED MAR. 20, 1906.

" Y M. STRANSKY.

n STRAINER.

APPLIOATION FILED JULY 23,1905.

- WITNESSES:

I NVENT OR 1 I fllq ur/ce Sframsky BY r To all whom, it concern.-

- Beit known that I, Mansion STRANSKY, a.v

- STATES PATENT OFFICE. i I memes STRAfiSK-Y, or NEW YORK, NY. i

srnAmzn.

Specification bf Letters Patent.

Application filed July 28, 1905; Serial No. 211,594.

citizenof the United States, residing at New York, in the county and State of New York,

have invented certain new and useful Improvements in Strainers, of which the following is a specification. V l

This vention relates to filters or c-ol'anders,

, primarily for kitchen and other domestic uses,

yet undoubtedly capable of adaptation to a wider range of usefulness.

The objects of the invention are, first, to

provide a much more sanitary utensil of class which ma be'morereadily thoroughly cleaned or sterilized, if desired, and, secondly,

' to provide a strainer or filter-in which the wrforated or meshed portion is easily removable (to which" the first-mentioned objectis incidental)-and with similar ortions interchangeable, whereby a j sing e device may serve a variety of purposes now requiring more or less of an assortment;

' It is well known that strainers, particularly those designed for domestic uses, are thoroughly cleaned with difliculty, If the lperforated or meshed portion, usually the ottom, is made removable, ready access may be against its seat.

had in cleaning to parts and crevices diflicult v to reachin an integral or substantiallyinte 3 gral device of-this character: Furthermore, my invention permits a strainer embodying of the emplo ent 0 any one of a varietyof separate pe orated or meshed portions with,

assorted gage or sizes of perforations or interstices, which is of obvious economical advanta e.

Wit the above and other ends in view my invention consists generally in' a." strainer having the percolator separate and removable and in novel means for detachablysecur ing said percolator infplace. Y r i My vention further consists in a container or receptacle an open bottom, a removable perforated or meshed disk having a seat in the opening, and means for.de-'

tachably' securing said disk within said opening and forsnbjectingsaiddisk to constant pressure, tending to'zhold'=the,. sa me firmly My inventionfurther consists in various details of construction and in combinations 1 of parts, all as hereinafter described, .and par tlcularly pointed out in the claims.

Myinvention will be more readily understood ,by reference to the accompanying drawings, forminga part of this specification,

and in which .Figurefis a bottom'plan view of astrainer embodying myinvention. Fig. 2 is a.view

Patented Mai-eh 20, 1906.

of the securing or lockingring. 3 is a view of the percolator or sieve. Figs. 4 and 5 illustrate modifications of the detachable percolator shown in Fig. 3. Fig. 6 is a detail of. construction hereinafter described.

Referring 'nowto the drawings detail,

annular groove 10. ltiymvention contemplates theemployment 'with this body -port1on and rim of an desired form of perforated or meshed dis such as shown in Fig. 3, whereinan annular frame 11 carries the .wire net 12, or, as shown in Fig. 5, the disk may be made of sheet metal having any de-.. I

sired size of perforations 13 therein and preferably a curled or beaded edge 14. This disk is designed to be freely inserted into and re f movable from the rim 9, thegroove 10 and theconverging wall of which provide a-shoulder or stop 15. .A

An open metallic 16 has a normal minimum diameter slightly less than theinside diameter of the r1m9 at the groove 10 and is therefore readily inserted within the groove 10. This ring 16 is formed of. spring metal-,yieldingly resist expansionor the spreading apart of its en s. Near each end of said ring ispivoted an arm '17 and18, respectively, whlch arms arethemselves pivoted together to form an angle when the ends of said therefore, of its least diameter. Obviously the exertion of a slight lateral pressure at the apex of this angle, tending to bring the two arms into alinement, will spread apart'the ends ofthe ainst ring action and enlarge or ex an the circ an area thereof. Therefore if t ringis placedin the groove 10 with the disk between said ring and the shoulder 15 and expanded by bringing said arms 17 and 18 into alinement, said disk will be firmly and securely locked in lace. Fur

.thermore, it be noted that t e groove 10 1s ofa size to snugly accommodate the alinular frame 11 and thering 16.- Therefore 9.5 are in contact and said ring, 7

when said ring is expanded in said roove the curved or tapering walls of the latter will tend to compress the frame 11 between the ring 16 and t e upper wall of the groove. In this manner I insure a perfectly tight joint by providing for the exertion of a constant pressure, tending to firmly hold said disk against its seat.

I have shown the arm 17 provided with a.

projection 19, the end'of which is adapted to impinge against the rim 9 to stop movement of said arms when they have assed the center, so that they may be loc ed against aceidental contraction of said ring. The arm 18 may be provided with a lug or projection 20 to facilitate manipulationof the arms.

It will be apparent that when disk and "desire to limit my invention to the specific construction hereinshown and described.

Having thus described my invention, I claim as new and desire to secure by Letters -Patent 1. In combination, a vessel, a separate and removable bottom therefor, a suitable top on one side of said bottom, a ring on the other side thereof, and means for expanding said ring and retaining the same in its expanded condition.

2. In combination, a vessel having a bottom opening, anannular groove at said openbottom," a' rim at the in a perforate bottom within and removab e from said groove, a normally contracted, expansible ring which when expanded and with said bottom substantially fills said groove, and means for retaining said ring in its ex anded condition. y

'3. n combination, a vessel having an open opening, a perforate disk fitting within said rim, a stop on one side of, said disk, an open ring on the other side thereof, and means for expanding and locking said ring.

4. In combination, a vessel having an open bottom, an outwardly-tapering rim at the opening, a perforate disk of slightly-greater diameter than the smallest diameter of said rim fittin within said rim, and a, normally contracte ,expansible ring to lock said disk in said rim.

5. In combination, a vessel having an open bottom, a rim at the opening, a circular groove in said rim, a perforate disk within and normally removable from said groove, an

open ring with said disk substantially fillin said groove, and means for expanding an locking said ring, I x

6. In combination, a vessel having an open bottom, an outwardly-tapering rim at the opening, a circular groove at the inner edge of said rim, a perforate disk within and removable from said groove, an open ring with said disk substantially filling said groove, and means for expanding and locking said ring.

In testimony of the foregoing I have hereunto set my hand in the presence of two wit nesses.

MAURICE STRANSKY.

Witnesses:

A. H. THIELE, HERMAN H. PRIMAVESE. 

